1N3830A-1

Single Zener Diodes Overview

The Microchip Technology 1N3830A-1 is a 1-watt metal case Zener diode with a nominal voltage of 7.5 V and a test current of 34 mA. It features a maximum Zener impedance of 1.5 ohms at the test current and 250 ohms at 1 mA. The device has a maximum reverse leakage current of 10 µA at 7.5 V and a typical temperature coefficient of +0.057 %/°C. It operates within a junction temperature range of -65°C to +175°C, dissipating up to 1 Watt.

Single Zener Diodes Feature Summary

• Hermetically sealed DO-13 welded metal and glass package
• Internally solder-bonded construction for high reliability
• Inherently radiation hard design
• ESD nonsensitive operation

Single Zener Diodes Applications

• High-reliability military applications
• Voltage regulation over broad operating currents
• Temperature compensation circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix requirements against the datasheet. The 'A' suffix indicates a standard tolerance of +/-5% on the nominal Zener voltage. Confirm if the 'e3' RoHS compliant matte-Tin finish or Pb/Sn plating is required for your assembly process. Ensure the ordering prefix matches the desired screening level (JAN, JANTX, JANTXV) if applicable.

Single Zener Diodes Selection Notes

Select this component when a low-voltage reference between 3.3 V and 7.5 V is needed in a hermetically sealed metal package. The 1N3830A-1 provides a stable 7.5 V reference with a positive temperature coefficient. Consider the thermal resistance of 50 °C/W junction-to-lead for heat sinking directly to the case, or 110 °C/W junction-to-ambient on FR4 PCBs.

Single Zener Diodes Part Context

This part belongs to the established 1N3821 through 1N3830A series of 1-watt Zener diodes registered under JEDEC standards. The series offers low voltage selections from 3.3 V to 7.5 V in the DO-13 package. Higher voltage options are available in the 1N3016 through 1N3051 series within the same package form factor.

Single Zener Diodes Replacement Considerations

Consult the manufacturer's documentation for direct substitutes within the 1N3821-1N3830A family. Verify that any replacement maintains the DO-13 metal case dimensions and hermetic sealing requirements. Military equivalents may require JAN, JANTX, or JANTXV prefixes.